Loom.



S. L. ODELL.

LOOM.

APPLICATION FILED 001223, 1313.y

1 1 20,522. Patented Dec. 8, 1914 l 2 SHEETS-SHEET 1.

j; [E1-1l..

SHEALY L. ODELL, F GBEENSBOBO, NORTH CAROLINA, ASSIGNOB, 0F FORTY ONE- HUNDBEDTHS TO ALVA GALLIMOBE. OF GREENSBORO, NORTH CAROLINA.

LOOM.

Lacasse.

Specication of Letters Patent.

Patented Dec. 8, 1914.

To all 'whom it may concern Be it known that I, SHEALY L. Comm, a citizen of the United States, residing at Greensboro, in the county of Guilford and State of North Carolina, have invented certain new and useful Improvements in Looms; and I do declare the following to be a full, clear, and exact descrlptron of the invention, such as will enable o thers skilled in the art to which it appertams to make and use the same.

This invention relates to weaving, and more especially to the driving and lay motions for looms; and the object of the same is to produce a unitary mechanism whlch will simultaneousl actuate the pickers and swing the lay `an will do away with the picker sticks, reduce the number of arts, and simplify the entire structure. 'I hls ob ject is carried out by the mechanism set forth in the following specification and shown in the drawingsjvhereini Figure 1 is a front elevation of a devlce constructed in accordance with my invention with the parts at rest, some of the parts being broken away for purposes of better illustration. Fig. 2 is a fragmentary rear elevation thereof. Fig. 3 is a horizontal section on the line 3 3 of Fig. 1, and Fig. 4 is a plan View. Fig. 5 is a vertical section on the line 5--5 of Fi 1. Fig. G isa partial front elevation slowing the parts in motion and illustrating the shuttle as just startin toward the left, and Fig. 7 is a vertice section on the line 7--7 of Fig. 6. Fig. 8 is a detail of a modified form of picker arm.

Inasmuch as my improvement 1s apphcable to a particular part of a loom, only such parts will be illustrated and described as are absolutely `necessary to the full and complete understanding of the case.

B designates a Suitable base such as the iioor, or sills thereon, and .F the, framework or swords pivoted at P to said base and carrying the lay L along which the shuttle S 1s reciprocated by the picker mechanism as the lay swings to and fro as usual. Other well known features of the ordinary loom need not be illustrated or described, and the action of this machine does not differ from those now in common use.

Referring now to the details of the present invention, a rotatin shaft 1 is mounted in bearings Q rising rom the base B and carries a cam 3. This cam is in effect a disk carried on the shaft and having a winding groove or cam slot 4 in its peripheral edge. Loosely mounted in this oove is a pin or roller 5 which depends rom a bracket 6 carried by the frame F, and in the present instance the bracket is shown in the shape of an arch which rises from the lower cross bar 7 of said frame although this detail is not necessary. At each revolution of the shaft 1 the groove 4 engaging the roller 5 will swing the frame F and with it the lay L to and fro. Fast on said shaft adjacent the cam is an arm 10 preferably having a roller 11 at its outer end, and this arm rotates within a ring 12 having at diametrically opposite points therein inwardly projecting cams 13 and 13' respectively with rather abrupt engaging faces 14 which are struck by the roller 11 as the arm rotates with the shaft 1. The ring is secured to and forms the lower portion of a lever l5 which is pivoted on a bracket 16 at the point 17 just above the ring as best seen in Figs. 1 and 6, the bracket also in this case being shown as an arch risin rigidl from the lower cross bar 7 of the rame The upper end of the lever is forked as at 18 and loosely receives a pin 19 on the picker rod 20. The latter carries the ickers which actuate the shuttle as usuali, and while they may be of any desired detailed structure I prefer to make them as follows: The rod 20 slides throu l1 guides 21 mounted on the frame F andg-carries at each extremity a picker arm 22 which a slot 23 in theend of the la with a suitable cushion 2t. T be of metal having a socket at rises through and is faced e arm 22 may its lower end secured by set screws 25 to the extremitv of 9 the rod 20; or, as shown in Fig. 8, the head QG'may be of an L-shaped plece of metal connected in the same way or in any suitable way with the extremity of the rod, and

the arm may be of wood as at 27 and will rise through the slot and carry the cushion as described. The latter is for the well known purpose of receiving the impact of the point of the shuttle as it is thrown from the op osite picker across the lay.

Another etail which I preferably einploy is a buffer to check the inward movement of the picker with ielding force. Into the end of the lay at t e inner end of the slot 23 is bored a hole 30 which is by pref- When now the picker is moved suddenly inward to impart an impulse to the shuttle S,

it strikes the head 33 and the latter conipresses the spring so that, if the parts are properly made, said picker will not contact with the inner end of the slot and there will be no sudden jar upon tlie parts.

With the above construction the operation of this device is as follows, starting with the parts at rest asv seen in Fig.` 1: Power is applied from any suitable source to the main shaft 1 and the crank arm 10 and eam turn through a quarter revolution to the position shown in Fig. 6. This shows the pai-ts after the roller 11 has traveled up the engaging face 1 4 of the cam 1'3 'so that the entire ring swings to the right from the pivot 17 and the upper portion of the lever 15 is moved to the left, and hence the fork 18 of said lever has moved the picker rod 20 and the right picker arm 22 has forced the shuttle S along the lay. Meanwhile also the cam has turned to the position indicated in Fig. 7, and its groove 4 engaging the roller 5 has swung the lay so that the advancing shuttle has moved between the shed of the warp threads and has laid the weft thread therein. Arriving at the opposite end of the lay, the point of the shuttle strikes the cushion 24 on the other picker arm, and the force of its impact is cushioned and the shuttle comes to rest rather than rebounding. As the crank arm 10 continues its movement from the position shown in Fig. 6 in a direction as indicated by the arrow in said igure, the cani 3 will, of course, also be rotated in this particular direction and the lay will be swung in the opposite direction as a result thereof. The swinging of the arm 10 in the direction of the arrow as seen in Fig. 6, will permit the free end of said arm to properly engage the member 12, so as to also dispose the same in the direction opposed to that disclosed in F ig. 6, or in other words, to the left hand side of thev frame. The roller on the outer end of the arm will, of course, perform the actual contacting with the ring and will obviously contact with the engaging face of the cam 13'.

Owing to the weakness of the weft threads it is not ordinarily considered advisable to start the shuttle along its course too suddenly, and therefore no harm will be done if the roller strikes within the ring 12 or if, in fact, the face 14 of the cam therein is sha ed with this end in view. It is quite obvious that the cam 3 could be replaced by another having a different groove 4, or that it could be set on the shaft 1 adjustably so that it could be adjusted in timed relation to tending through the lay-frame,

Macnee the action of the cams within the ring 12. However, matters of adjustment are not necessary to the successful operation of the present invention, and ll do not lwish to be limited to them nor to details of construction or materials or proportions lof parts.

What is claimed as new is:

1. In a` loom, the combination with the swinging lay-frame, and the picker rod reciprocating therein; of a power shaft ex a cam thereon having a' groove in its face, a bracket in said frame having a pin engaging said groove, an arm fast 0n said shaft, a ring pivoted on the frame and encircling said arm, said ring having o positely disposed cams adapted to be struc by the outer end of said arm, and connections between said ring and the picker rod.

2. ln a loom, the combination with the swinging lay-frame, and the picker rod reciprocating therein; of a power shaft extending through the lay-frame, a cam thereon having a groove in its face, a bracket in said frame having al pin engaging said groove, an arm fast on said shaft, a ring encircling the arm and having oppositely disposed cams adapted to be struck by its outer end, a lever having its vupper end connected to said picker rod and its lower end attached to said ring, a bracket carried by the lay-frame, and apivot connecting this bracket with the lever.

3. 1n a loom, the combination with they lay, the Swingin frame therefor, and the picker rod Inova power shaft, a cam thereon having a groove in its face, a bracket in said frame having a pin engaging said groove, an arm fast on said shaft, a ring encircling the arm and having oppositely disposed cams adapted to be struck by the outer end of said arm, a. lever extending rigidly upward from the top of said ring, loose connections between the upper end of the lever and the picker rod, an arch rising from the lower cross bar of the lay-frame, and a pivot between-said arch and the lever at its point of juncture with the frame.

4. In a loom, the combination with the swinging lay, and the picker rod reciprocating therein; of a horizontal power shaft, a cam thereon, 'connections between the cam and the lay-frame for swinging the latter, an arm projecting rigidly from said shaft and having aroller at its outer end, a ring surrounding said arm and having oppositely disposed cams adapted to be engaged4 by said'roller, a lever extending rigidly upward from the top of said ring, loose connections between the upper end of the lever and the picker rod, an arch rising from the lower cross bar of the lay-frame, and a pivot between said arch and the lever at its point of juncture with the frame.

gli:

icc ly mounted therein; of a iis In a loom, the combination with the swinging lay and the picker rod reciprocating therein; of a horizontal power s aft, a cam thereon, connections between the cani and the lay-frame for swinging the latter, an arm projecting rigidly from said shaft and' having a roller at its outer end, a ring surrounding said arm and having oppositely disposed' cams adapted to be engaged by said roller, a lever rising rigidly from the ring and having a forked upper end, a `bracket on the lay-frame to which'said lever is pivoted, and apin projecting from the midlength of the said lever.

f3. In a loom, the combination with the hase, a swinging lay whose frame is pivoted in the base, guides on said frame, and the picker rod slidablymounted through said guides; of bearings rising from said base, a horizontal power shaft journaled in said hearings, means inconnection with the shaft and disposed betweenthe bars of the la traine for swinging the latter as the sha t rotates, an arm projecting rigidly from said sha f t and carrying a roller, a ring surrounding the roller and having inwardly projecting canis adapted to be struck by said roller, a lever rising rigidly from the to of the ring and loosely connected with said picker rod, a bracket within the layframe,^and a pivot between said lever and bracket.

7. In a loom, the combination with a stationary base, a frame mounted for pivotal movement thereon, a lay carried on Athe.

picker rod through the fork in frame and a picker rod movably mounted on said frame; of a drive shaft extending through the frame and having its axis in a plane at right angles to the pivotal axis of said frame, means in connection with said shaft and the frame for oscillating the latter on the base as said shaft is rotated, a. bracket secured to said frame and having the shaft disposed therethrough, a lever fulcrumed on the upper portion of said bracket and havin the upper end thereof arranged in connection with said picker rod to reciprocate the latter as the lever is oscillated on its fulcrum point, a ring-like member formed on the lower fulcrumed ortion of said lever and projecting therebe ow to receive said shaft therethrough, the inner periphery ofsaid ring-like member being provided With cams at diametrically opposite points thereon, an arm carried on the shaft to rotate therewith and disposed within the space inclosed by said ring-like member and aroller carried on the outer end of said arm to Contact with lthe inner )eripheral edge of said ring-like member and the cams thereon whereby to oscillate said lever and actuate the pickel' rod as said shaft is rotated.

` In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

SHELY L. UDELL. 'itnesses Rinzuorvn Emu-mns, ALM (ALLmomJ. 

